Cheap flights from Saint Louis to Detroit
from 120 US$
From 254 USD — compare hundreds of airlines
The cheapest month is usually 2026-09 · 120 US$
See prices for my dates →Live fares from 100+ sites — free, with no hidden fees.
About this route
Compare flights from Saint Louis to Detroit, a about 732 km route (around 1h 25m nonstop). We gather live prices from hundreds of airlines and agencies so you can find the cheapest and book on the official site, with no hidden fees. Direct flights are available. Airlines such as Delta, Southwest Airlines operate this route.
When to buy and when to fly
Prices by date
Fares found by date — cheapest days in green.
How to get the best price
Airlines on this route
FAQ
What's the cheapest month to fly Saint Louis to Detroit?
It's usually 2026-09, from 120 USD. Use the price calendar to compare other dates.
How long is the flight from Saint Louis to Detroit?
A nonstop flight takes about 1h 25m and covers around 732 km. Connecting itineraries take longer.
Are there direct flights from Saint Louis to Detroit?
Yes, this route has nonstop flights. Filter by "nonstop" to see them.
Which airlines fly from Saint Louis to Detroit?
Delta, Southwest Airlines operate this route, among others. Compare them all in the results.
When should I book Saint Louis–Detroit flights?
As a rule of thumb, booking 3–8 weeks ahead and avoiding weekends and holidays tends to give the best prices. Use the calendar to spot the cheapest dates.
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Saint Louis → Detroit · Live fares from 100+ sites — free, with no hidden fees.